A vital sign information recording system includes a data collector configured to collect behavior-associated information of a subject and vital sign information of the subject, and a display configured to display a presumed behavior of the subject and the vital sign information of the subject. At least one of the data collector and the display has a controller configured to determine the presumed behavior of the subject based on the behavior-associated information, and to display the presumed behavior of the subject and the vital sign information of the subject in a mutually associated manner on the display.
